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What happens when a Lyophilic sol is added to a Lyophobic sol?
  • a)
    Lyophobic sol is protected
  • b)
    Lyophilic sol is protected
  • c)
    Film of lyophilic sol is formed over lyophobic sol
  • d)
    Film of lyophobic sol is formed over lyophilic sol
Correct answer is option 'A,C'. Can you explain this answer?
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What happens when a Lyophilic sol is added to a Lyophobic sol?a)Lyopho...
Lyophilic sols are more stable than lyophobic sols. This is due to the fact that lyophilic colloids are extensively solvated, i.e., colloidal particles are covered by a sheath of the liquid in which they are dispersed.
Lyophilic colloids have a unique property of protecting lyophobic colloids.When a lyophilic sol is added to the lyophobic sol, the lyophilic particles form a layer around lyophobic particles and thus protect the latter from electrolytes.Lyophilic colloids used for this purpose are called protective colloids.
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What happens when a Lyophilic sol is added to a Lyophobic sol?a)Lyopho...
When lyophilic sol is added to lyophobic ....a film of protective layer is formed on lyophobic Sol ...so lyophobic Sol is protected...
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What happens when a Lyophilic sol is added to a Lyophobic sol?a)Lyopho...
Lyophilic sols are more stable than lyophobic sols. This is due to the fact that lyophilic colloids are extensively solvated, i.e., colloidal particles are covered by a sheath of the liquid in which they are dispersed.Lyophilic colloids have a unique property of protecting lyophobic colloids. When a lyophilic sol is added to the lyophobic sol, the lyophilic particles form a layer around lyophobic particles and thus protect the latter from electrolytes. Lyophilic colloids used for this purpose are called protective colloids. so,op B.
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Read the passage given below and answer the following questions:Some colloids are stable by their nature, i.e., gels, alloys, and solid foams. Gelatin and jellies are two common examples of a gel. The solid and liquid phases in a gel are interspersed with both phases being continuous. In most systems, the major factor influencing the stability is the charge on the colloidal particles. If a particular ion is preferentially adsorbed on the surface of the particles, the particles in suspension will repel each other, thereby preventing the formation of aggregates that are larger than colloidal dimensions. The ion can be either positive or negative depending on the particular colloidal system, i.e., air bubbles accumulate negative ions, sulphur particles have a net negative charge in a sulphur sol, and the particles in a metal hydroxide sol are positively charged. Accumulation of charge on a surface is not an unusual phenomenon-dust is attracted to furniture surfaces by electrostatic forces. When salts are added to lyophobic colloidal systems the colloidal particles begin to form larger aggregates and a sediment forms as they settle. This phenomenon is called flocculation, and the suspension can be referred to as flocculated, or colloidally unstable. If the salt is removed, the suspension can usually be restored to its original state; this process is called deflocculation or peptization. The original and restored colloidal systems are called deflocculated, peptized, or stable sols. Why does a small amount of salt have such a dramatic effect on the stability of a lyophobic colloidal system? The answer lies in an understanding of the attractive and repulsive forces that exist between colloidal particles. Van der Waals forces are responsible for the attractions, while the repulsive forces are due to the surface charge on the particles. In a stable colloid, the repulsive forces are of greater magnitude than the attractive forces. The magnitude of the electrical repulsion is diminished by addition of ionized salt, which allows the dispersed particles to aggregate and flocculate. River deltas provide an example of this behaviour. A delta is formed at the mouth of a river because the colloidal clay particles are flocculated when the freshwater mixes with the salt water of the oceanQ. Colloidal solutions are stable due to

Read the passage given below and answer the following questions:Some colloids are stable by their nature, i.e., gels, alloys, and solid foams. Gelatin and jellies are two common examples of a gel. The solid and liquid phases in a gel are interspersed with both phases being continuous. In most systems, the major factor influencing the stability is the charge on the colloidal particles. If a particular ion is preferentially adsorbed on the surface of the particles, the particles in suspension will repel each other, thereby preventing the formation of aggregates that are larger than colloidal dimensions. The ion can be either positive or negative depending on the particular colloidal system, i.e., air bubbles accumulate negative ions, sulphur particles have a net negative charge in a sulphur sol, and the particles in a metal hydroxide sol are positively charged. Accumulation of charge on a surface is not an unusual phenomenon-dust is attracted to furniture surfaces by electrostatic forces. When salts are added to lyophobic colloidal systems the colloidal particles begin to form larger aggregates and a sediment forms as they settle. This phenomenon is called flocculation, and the suspension can be referred to as flocculated, or colloidally unstable. If the salt is removed, the suspension can usually be restored to its original state; this process is called deflocculation or peptization. The original and restored colloidal systems are called deflocculated, peptized, or stable sols. Why does a small amount of salt have such a dramatic effect on the stability of a lyophobic colloidal system? The answer lies in an understanding of the attractive and repulsive forces that exist between colloidal particles. Van der Waals forces are responsible for the attractions, while the repulsive forces are due to the surface charge on the particles. In a stable colloid, the repulsive forces are of greater magnitude than the attractive forces. The magnitude of the electrical repulsion is diminished by addition of ionized salt, which allows the dispersed particles to aggregate and flocculate. River deltas provide an example of this behaviour. A delta is formed at the mouth of a river because the colloidal clay particles are flocculated when the freshwater mixes with the salt water of the oceanQ. Gelatin is a ________________ colloidal system.

What happens when a Lyophilic sol is added to a Lyophobic sol?a)Lyophobic sol is protectedb)Lyophilic sol is protectedc)Film of lyophilic sol is formed over lyophobic sold)Film of lyophobic sol is formed over lyophilic solCorrect answer is option 'A,C'. Can you explain this answer?
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What happens when a Lyophilic sol is added to a Lyophobic sol?a)Lyophobic sol is protectedb)Lyophilic sol is protectedc)Film of lyophilic sol is formed over lyophobic sold)Film of lyophobic sol is formed over lyophilic solCorrect answer is option 'A,C'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about What happens when a Lyophilic sol is added to a Lyophobic sol?a)Lyophobic sol is protectedb)Lyophilic sol is protectedc)Film of lyophilic sol is formed over lyophobic sold)Film of lyophobic sol is formed over lyophilic solCorrect answer is option 'A,C'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What happens when a Lyophilic sol is added to a Lyophobic sol?a)Lyophobic sol is protectedb)Lyophilic sol is protectedc)Film of lyophilic sol is formed over lyophobic sold)Film of lyophobic sol is formed over lyophilic solCorrect answer is option 'A,C'. Can you explain this answer?.
Solutions for What happens when a Lyophilic sol is added to a Lyophobic sol?a)Lyophobic sol is protectedb)Lyophilic sol is protectedc)Film of lyophilic sol is formed over lyophobic sold)Film of lyophobic sol is formed over lyophilic solCorrect answer is option 'A,C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
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